Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
1978-01-06
1978-01-20
1978-01-27
1978-02-03
1978-02-17
1978-02-24
1978-03-10
1978-03-24
1978-03-31
1978-07-14
1978-07-21
1978-07-28
1978-08-04
1978-08-11
1978-08-18
1978-08-25
1978-09-01
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1978-09-15
1978-11-03
1978-11-10
1978-11-17
1978-11-24
1978-12-29
111 Episodes · 1966
9 Episodes · 1964
24 Episodes · 1965
23 Episodes · 1966
23 Episodes · 1967
24 Episodes · 1968
37 Episodes · 1969
37 Episodes · 1970
32 Episodes · 1971
33 Episodes · 1972
32 Episodes · 1973
33 Episodes · 1974
26 Episodes · 1975
30 Episodes · 1976
23 Episodes · 1977
24 Episodes · 1978
25 Episodes · 1979
25 Episodes · 1980
27 Episodes · 1981
22 Episodes · 1982
24 Episodes · 1983
22 Episodes · 1984
16 Episodes · 1985
22 Episodes · 1986
22 Episodes · 1987
25 Episodes · 1988
20 Episodes · 1989
20 Episodes · 1990
23 Episodes · 1991
19 Episodes · 1992
21 Episodes · 1993
21 Episodes · 1994
20 Episodes · 1995
16 Episodes · 1996
15 Episodes · 1997
18 Episodes · 1998
14 Episodes · 1999
19 Episodes · 2000
11 Episodes · 2001
18 Episodes · 2002
19 Episodes · 2003
18 Episodes · 2004
20 Episodes · 2005
19 Episodes · 2006
9 Episodes · 2007
17 Episodes · 2008
18 Episodes · 2009
14 Episodes · 2009
15 Episodes · 2010
13 Episodes · 2011
16 Episodes · 2012
11 Episodes · 2013
18 Episodes · 2014
16 Episodes · 2016
15 Episodes · 2017
13 Episodes · 2018
6 Episodes · 2019
8 Episodes · 2020
4 Episodes · 2021
4 Episodes · 2022
1 Episodes · 2024
4 Episodes · 2025
1 Episodes · 2026
